In this article, we shall look into the disenfranchisement of the Plains Indigenous Peoples by the government in Taiwan. In the beginning, we start with a brief introduction of the historical background of the governmental policy regarding the evolution of Indigenous Status on the part of the Plains Indigenous Peoples followed by a concise description of current practice of the central and the dissenting local governments. Secondly, we will show how the government is discriminating against them by resorting to the principle of equality. Further, we shall show how the government has deprived them the rights to self-determination and to participation by enlisting relevant international conventions. In addition, by employing the ideal of cultural rights, we will refute the charge by the government that they have been too assimilated by the Han Peoples to be considered as Indigenous Peoples. Before we come to the conclusions, we will refute the notion of original intentions espoused by the officials for their position.